Can someone identify this for me?

Semper.Reefing · Dec 9, 2019

I noticed this in my tank when my fish were crowding around it. This GSP frag hasnt really ever opened up all the way. After I saw this monster hanging out of it I havent seen the GSP open at all. I posted a video on my facebook and instagram but couldnt get a solid answer. Someone suggested its a harmless Pineapple Sponge.

Semper.Reefing · Dec 9, 2019

Big Vermetid Snail?

P-Dub · Dec 9, 2019

Definitely need a better shot. Closer grasshopper, closer. It is not a pineapple sponge, that much I can say for certain.

vetteguy53081 · Dec 9, 2019

Closer and add a little white

Semper.Reefing · Dec 9, 2019

P-Dub said:
Definitely need a better shot. Closer grasshopper, closer.

I was trying to upload a video. It hasnt been out since i first saw it. If you dont mind looking at my latest instagram post you can see a close up video Stu_tanks

Jcagle09 · Dec 9, 2019

Not a vermetid snail. But I dont know what it is.

Semper.Reefing · Dec 9, 2019

https://www.instagram.com/p/B5ycZKcJc3z/?igshid=204ll0xf8ezv

P-Dub · Dec 9, 2019

Checked out the video. I'm stumped. Was thinking initially a tunicate of some sort but that's not it, I don't think it is at least.. Researching... #reefsquad

Wolf89 · Dec 9, 2019

Looks kinda like a bivalve

Hemmdog · Dec 9, 2019

Very strange

Fudsey · Dec 9, 2019

Got me stumped @KJ

Semper.Reefing · Dec 9, 2019

I didnt get it on video, but i also saw it blowing something up in the water column..hopefully not reproducing !

Retro Reefer · Dec 9, 2019

That’s a new one one me.. fascinating!

flsalty · Dec 9, 2019

Is that like a shell on top? Looks something like a gooseneck barnacle.

stanleo · Dec 9, 2019

I was thinking some kind of barnacle as well. Very strange looking

Semper.Reefing · Dec 9, 2019

flsalty said:
Is that like a shell on top? Looks something like a gooseneck barnacle.

It did look like a shell on top and had a big mouth it’s weird because I have no idea where it is now. My GSP frag it was on has been closed up for a few days now.

Jcagle09 · Dec 9, 2019

Stu_Tanks said:
It did look like a shell on top and had a big mouth it’s weird because I have no idea where it is now. My GSP frag it was on has been closed up for a few days now.

Keep us updated.

flsalty · Dec 10, 2019

Well the good news is that you've found something that keeps GSP under control...lol

Is it possible that it burrows under the GSP mat? If not, check under your bed

Semper.Reefing · Dec 10, 2019

flsalty said:
Well the good news is that you've found something that keeps GSP under control...lol

Is it possible that it burrows under the GSP mat? If not, check under your bed

I pulled the plug out and looked closely but didn’t see anything. So weird!